pattlks



G. B. PAU'LKS. Am BRAKE ATTACHMENT.

APPLICATION FILED SEPT. 12, 1912.

Patented lfipr. 15, 1913.

a E. Zkalibs.

" OFFICE.

or renew,- con-owe.

era-rm arraomnn- To all whom it may-comm."

Be it known 'that'I, Cnswus E. FAULKB, a citizenot'the United States, residing at Pueblo Colorado have invented certain new and useful Improvements in --Air-Brake Attachments;;'and"'I do hereby declare the followmg; to he a full, clear, and exact description the-i leadingipbjectithe" niento" l ways-JP"? 2o n'ventiomsuch as will enable others skilled in the art .to which it apper' tains to makeIande-use the-same. v

to improvementsjn bralgee, and. has for its pgivie onpi a'nim 'r'eadily'i'secure to"a-n This 4 'nventionrelates attachments for-sin 'eli'i'jwili enabie,ltheitraing ntro1-t he .aniount of 'pressurezjwhich iifronifz the auxilia 'mervoirflor rov'isi'on.- joian improve gr'akeieyliaderawhereby." the limit of pres-' su'rema jb'e h adjust as I e'sired orwherehygsaidzcyhninvention is the dersnay--l )e 'plaeedjlin direcfiepmmunicat-im with the enter ain to absolutely. prevent, ape plication og-thefbrakes, except. an an emer-. gency application Another objector my vision of unimproved character which, while-inn'o. way interfer? ing with the application otgthe brakes when desired, .will ,pr event the brakes from up lied by .a' slig'ht' leakage lot-Ithd triple va ve or on ,aec'oa toi in the;presure'in theitraizipipe aa. OtherjohLecta and advantages of my *mi prov'ed'air; apparent by reference-to the foilowiiig.,description' taken in nnection'yith -the accom anyinfdriiwin ,taiid it willbe'under sto that shown and described Fi'gui''l represses nit'i nfpt a in the. county of Pueblo, State of;

roved f miths infin t ven h rake cy n p s m o ki h'chwould 'esnsethe sliding attachment for 1d in'sa d cylinders. may be invention isthe 'attachment of this being I but a slight rake attachment will be readily "T claims ,withoixt-de .1- .-.,.-n'..un etji ettersate'at Patented Apr. 15,1913. Application nee l epteinber ia,'ieiaf s x-threesome.

;.ham 1 my attachment secured to the .cyhnder-o -the airbrake, Fig. 2, represents an enlarged side elevation of my attachment rtions of the auxiliary reservoir and rake cylinder being shown in section. Fig. -8 represents a sectional view of my device showing the various parts in their normal position, 4 represents a sectional view show in the: ition of theyarious parts jwhen .t e bra es, are applied to a car with gay, device set for empty and the pressure in the auxiliary reservoir is cansafel be-appliedto the brakes without .loelgin'gt ewhee sgI Fig. 5 represents a similarfseQtionalvi evI; 'si1%wing.fthe parts in elrlnersarcasm A i ii ragmentm' zqntalg-lse'ctional -igew on" the line 6-6 of Fig SQFi'g'. Tie afraFmentary horizontal segtionalj-tviewgonjthe1 me 7- 7 of Fig. 2. F1g;5}8, splanaviewpt jmy' attachment, the device being sin neutral posit-ion.

ffZQIn' the'dxiwin'gsi the numeral 1 designates atreightjear havmg the usual brakes 2 from .fliiii1 .l68.d'- th connections 8 to the end of ,the brake-piston,'rod-'4,- Said piston 4 has on enema thepistonhead finworkin in the lbr'aite-geyhndemfi 'hav1ng leading -t ereinto the" ipei; r-.'; Sai 1 i e passes t rou h the an 'ary reservoir 12 and leads-to t e eas- 8' -()f ftha regular Westinghouse triple va ve,' ;which casmghas leading 'thereinto the branch 9 01 the train pipe 10 and the opening- 1L which leads to the auxiliary ree'ervmr lgwhieh-serves to normally a daply thehhralres as wfll be readily u-nderstoo by those :fa'zmliar withthe. estinghoase or othenairbrakes. A- spring 13 within the hnderbea'r'a agaihst the inner face of t eigpistonhead '5 'to normally hold the brakeeri n disengaged position.

ped tothe end ofthe cylinder 6 is leanin its. other end engaged in the} ('1! ersection' 15 of my improved valve easin ,gyvhereby any pressure in the-brake eylin erfrom-eitherthe train pipe or the A v into the casing 15. Said. casin'g 15 is e osed at its lower end by ."the neremkpi i 16 which may be removed when-it to clean thecasing while eir'tehdinfherbss the upper portion is the tering air; to-the bottom of "the'ch'amber.

Secured'hy. a Jthread connection to the upper iend-jofthe section 15' of the 5 casing is a second seetion; 21"havingth e laterally extending branehesw and 23*at the upper end thereof, said 'branche'eqterminating in the (lis'chnr e parie al and 25 controlled by thehlow-o valves 20 and 27n'ormally held in closed position by the springs 28 and 29 disposed within 'the' perforated tubes 80. Said tubes. lit) are surrounded by. the larger perforatedf'oasing 81 which in ,connectlon withjthe tubes 80 formmufiiers' to :decrease .th'ejn'oise'of the 'airjesoaping from either of ale-passes;va1 es. The spring. 28 is eonsiderably weakerfthanthes ting29'fwhere; I li"y.'{thejvalve24will-blowxo at considerably.

rs, r s ts"thn ii m e .Q r' BH-Q "steam the'g's' rings beingadjusted byfturne ing: of 't liei'fp ii'ge -82" whi ch are engagediin 'thelflowerf ends lofithe jtubesl afl. ea 51 is "screwed on eao h' bf .'the plil 82, an gbinds again tithef; lbivittehdf'bf t el'casing BM-fin .thea'dvance moveihentsotthe] lu the handled?!"haying airibl351M111 ted-1o" t into "one 1 offthe'iiiotehes 361ot't casing* plate 87 to lock the handle in'f lidf llflted p0-.:

sition, said handle being 'nutllcient yfiesilient .d

to permit ofsprinqlng ofthe rib out of thenoteheu' iisdeslred. aid valve is moonstruoted that whendle'posedpver the I use marked ,f Empty "it ill-cause air mm; the casin 21 toe-pass throujgli the'bran'ch 22 to the va veZ-26jwhileturnin offlthe'handle' to lie over the wordj l' oa e will. cafusei the air ,topuss'across the assage';33 'to' the Valve .f The valved maylalsoffbe shifted to an intermediate gor' ;la'p" T'po'si-f tion where'it will preventj air from passing oatjoi the in- 121 .or maybe shifted-into" cut-out] position to out' put my attachment and allow. any air-in the casin 15 "and-21 tolipa'ss directly upwartl -throug "the valve,- zp s' p rtbfl id-i pa in o? car, I form the piston rod ll! with the central passage 38 in communication with the space 39: at the-lower end of the cusing 15, While formed in the side of the piston rod is a-small aperture 40 normally in alinement With,.the passage- 41 extending outward through the partition 17 and easing wall 15. Slight pressure in the space 39 will pass upward in the passage 38 of the piston rod, thenceoutward through the aperture 40 and passage. il gand will prevent the pressure from aceuni'lilat-ing in the space 39 and con- .sequent-ljr" in the end of the brake cylinder. Threaded into the casing 15, and over the passage. 41," is' a downturned nipple 59, whiehprevcnts any'dust, cinders, or other -foreign substance getting into the said passage. Packing rings 42 on the piston rod 19 prevent the said air under pressure from passing downward against the upper face 01 the piston head 20; To normally hold the piston .downward against the slight pressure. against 'thelower 'face thereof, 1 mount on the piston red the nuts 49/ against which be'ar, the lower ends of the light helicul 'spring fi, and the heavier helical spring .44; said "s rin v I hein concentrically arranged; slight spring has its upper end in constant'engagement with the lower face fo flth'e qollar' drlbushing' 46' which is screwed intbgfiliejltiwer endof the section 21 of the l.

casing,fahd isflooked in" adjusted position bj' thejam n'ut 47; "The heavier sprlng 44 v is f -normally' 1." out of j engagement 7 with the bushin 48,"hiit is'brought into'engagement therewith when there ssufiicient plessm'e in'fthe apace'orjchamberill) to force the pistdnfan piston d'upward. 'lhisaipward forcing oif'the pistonfshifts the aperture l Q aboye theff' pussuge' 41 and moves the lower 'offth'ej-pticking rings "42, to com pletel y cotter]thej'passageywhich shuts off the flow bff airj out'throu hs aid passa e when the eviceis in service position; tie s aring 44 centnctingwith the;bushing 46, to imit the upwardinovelpehtof'tht: piston and piston r -w; Thej pussagebs' of the lston rod termiates the apertures 48 isposed above the iiuts i42';f-th eairpassi'ng through said ports dBitlind through the passages 4.)

fornie d in'ithe hushing, Said bushing base; reoessud ts upper face in. which rests v-"thexlowei' endoflthe spring 50 the upper end ofyhichlb'ears"ugainst the lower end lilpf the upwardly tapering valve 33 which -fits wi thin, the 'eorrespondingly tapered seat 2l "in thef'secti on 21..' ",The valve 33 has on ,itslower end a nozzle 53 disposed normally [tisllghfldlstflhqtl above the upper end of the piston rod,"'and h aving a vertical bore which flares-'il pwardly is at. 52, and downwardly .as 'et' ,"th'e air. slowly passing upwardly ithrou'gh 'th'ebore'ehd thence through the llll) the 'arrpws on the draw? nozzle 53 'to"reoeive snugly-the pointed upper 'end 19? of the piston rod. 19.:-

In ordinary'fservice applications? of air, the gradual reduction *mfithe' train pipe k -nected{to,the-stem, no movement tending to pressure 1 causes the partial shifting-ofe main-' {pistonlaf;the; Westinghouse 1e valve and afportion 'of the; air gradua y" applied'to the brake tially raise the piston rod 19, but on account e;device is. set for Empty the air will pass throu 11''- the valve 88 to the blowofl valve 26, ig. 4) and upon excessive pressure in the brake cylinder will blow. oil

-' through said valve to set brakes without vlocki the wheels and to cause the sliding thereo This-*oper'ation is the'same when the device is set for loaded position with the exception that a greater pressuregis necessary to,.open--the, valve"-27, the tension of.

nerland by cutting 98 .passages,"permitsyofjonly the slight escape: I 8

acts asji-the' common 'drain or. bl

ialsolinounteda" us't i r 'end*of t e valve 88 is formed the spring 29 being suitably regulatedfaccordin .tothe grip which the load-will cnuset e wheels to. have-on the rails.- When,

however; :it-is desired to set the brakes-in: ressure an emergency and'the train= ipe. is suddenl rgreatly. reduced, the

and; said'eifpressure inth'e; chamber 89 I will rod will seat itself within the lowerend pf the nozzle 58 and-thus prevent the air from passin upward through thevalve 88 and cause eull pressure o b'e retained on the brake 'cylinder.; The pointed end of the piston rod prevents any collection'oi dust or other foreign-matter thereon. The -plaeingot the controlling handle '84yin. lapped positionhaa a similar efiect in th'ati1t=causea the brakes to operate in ltgfgorctlinary manof airthroulgh the passagefl. n In the va 've-88 18 formed a passage 55,

which re stem with an outlet 56-,- 1n.. the

casing, w on the handle 8 is in theneutral osition as shownin Figs. 2, 7- iind 8. hen e deviceis in neutral position-.- it

ordi a'ry'brake s stem. ,--'At the outlet buds alfd 56C? T zl p with a uced rectangular stem h'l'gwhichprojects upwardly through an opening in linder from' the aux iliary reservoir will fil the"space 89a'nd par- V I fisu den 1duction o pressure allowsthe ressure inf the --aux iliary -reservoir-to entire y compress: the graduating spring. of the triple waive;

the escape the top of the casing 21. Bearing 0n the .'up er facefofthec'asmg plate 37 and loosely meuntedgon-the it per end'of the stem is the handle34a 'This andle has'a cross pin 59 the end of-the-stem' 57'. Thus the handle 'on the casinfieplate, and should {any-downward pressure brought to bear enthe' oruon of the handle'which 18 conunseatthe valve 33-could take place. if-Fromthe foregoing description taken-1n ingis the construction and operation of my improved air brake attachment will be readilyunderstood, and it will be seen that I have/provided an extremely satisfactory device which can be set to a low of emerncy application of the brakes on both fo aded and empty cars while automatlcall preventing suc pressure in the brake cy mders' of the empty cars as will lock the wheels of said .cars and cause flattenin thereof, and which device will have additional desirability in that it prevents the brakes from being set by a reduction of but a few ounds in the train pipe pressure althoug v in no wise interfering with the *eflicientservice or emergency brake applic on-i.- H What is claime'dis:

g---' '1. The combination with the hrake cylinder of an air brake, of acasin 1n communication therewith, a piston sli ably mounted in the casing, a spring for res liently holdpiston in'position, said piston having a-"hollow piston rod with. a passage 'formed-i'n one side thereof, and the casing having a. passage'fonned therein in commu- ;1"n i catio'n. with the outer air and normally in alinement with the passage of the piston rod to' rmit of slight escape of air through the said passages. I '2. 'The combination with an air brake cyl- 'inder,- of aT-shaped casin in communication therewith a pluraligv of ow-ofl valves carried by! he casing or yielding at difierent pressures, a valve for controllin the flow of pressure to any of the blow-o valves, and means for automatically cutting out the various blow-0d valves upon application of the h hecombination with an air brake cylinder, of a (main in communication therewith, blow-ofl' -va ves carried by the casing, means for mullling the exhaust from said valve, means for cutting out any or all of .said valves, and supplemental means for antoinatically cutting out said valves upon application oiemergency pressure.

"4. The combination with an air brake cylinder, of afcasin in communication therewith blow-oil va ves carried by the upper which works-ins. longitudinal slot 60, in

portion of the casing, means for cutting out a'ocordancejwith the accompanying drawlot] any or all of said valves manually, a piston in the lower portion of the casing, an escape port normally open and controlled by the piston, a ton rod secured to the piston, and a air of springs for resisting movement 0% the piston but adapt-ed to yield under moderate pressure to allow the piston to shift to close the escape port and to yield under excessive pressure to permit the piston to automatically cut out the blow-off 10 valves.

In testimony whereof, I aifix my signat-ure in presence of two witnesses.

OHELOIAS E. FAULKS.

Witnesses J OHN M. HOLMES, ALBERT TAUB. 

